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sidarape
Joined: 30 Dec 2010
Posts: 5
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 Posted: Thu Dec 30, 2010 10:25 pm Post subject: Compile program with MinGW |
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Hello,
First, I want to advertise you that english is not my first language and he is not very good.
So, the subject of this topic: I downloaded and installed MinGW for Windows and I compile libnatpmp with gcc. That worked very fine. Next, I put the headers in C:\MinGW\include and the natpmp.a generated by gcc in C:\MinGW\lib. I take the DLL and put it into the future executable of my program. So, I tried to compile a program with libnatpmp.h include but the compilation of program crash: There is the exit of gcc:
| Quote: | C:\Users\Fredy\AppData\Local\Temp\ccgnf3bs.o:main.c:(.text+0x45): référence indéfinie vers « _imp__initnatpmp »
C:\Users\Fredy\AppData\Local\Temp\ccgnf3bs.o:main.c:(.text+0x78): référence indéfinie vers « _imp__sendnewportmappingrequest »
C:\Users\Fredy\AppData\Local\Temp\ccgnf3bs.o:main.c:(.text+0xf0): référence indéfinie vers « _imp__getnatpmprequesttimeout »
C:\Users\Fredy\AppData\Local\Temp\ccgnf3bs.o:main.c:(.text+0x11f): référence indéfinie vers « select@20 »
C:\Users\Fredy\AppData\Local\Temp\ccgnf3bs.o:main.c:(.text+0x134): référence indéfinie vers « _imp__readnatpmpresponseorretry »
C:\Users\Fredy\AppData\Local\Temp\ccgnf3bs.o:main.c:(.text+0x176): référence indéfinie vers « _imp__closenatpmp »
collect2: ld returned 1 exit status |
The exit is half in french: "référence indéfinie vers" means "undefined reference to".
The code of the program that I tried to compile is:
| Code: | #include <stdio.h>
#include <stdlib.h>
#include <natpmp.h>
int main()
{
printf("Compilation reussie");
return 0;
}
void redirect(uint16_t privateport, uint16_t publicport)
{
int r;
natpmp_t natpmp;
natpmpresp_t response;
initnatpmp(&natpmp);
sendnewportmappingrequest(&natpmp, NATPMP_PROTOCOL_TCP, privateport, publicport, 3600);
do {
fd_set fds;
struct timeval timeout;
FD_ZERO(&fds);
FD_SET(natpmp.s, &fds);
getnatpmprequesttimeout(&natpmp, &timeout);
select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
r = readnatpmpresponseorretry(&natpmp, &response);
} while(r==NATPMP_TRYAGAIN);
printf("mapped public port %hu to localport %hu liftime %u\n",
response.pnu.newportmapping.mappedpublicport,
response.pnu.newportmapping.privateport,
response.pnu.newportmapping.lifetime);
closenatpmp(&natpmp);
} |
It is the code of the first example of this site except for "response.pnu." that was only "response." because the compilation of this crashed.
Thanks to all of you for your answers. |
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miniupnp
Site Admin
Joined: 14 Apr 2007
Posts: 1594
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| Posted: Fri Dec 31, 2010 10:43 am Post subject: |
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you shoud define the STATICLIB macro in your code if you are linking against the static library (.a) and not the .lib for .dll linking.
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Main miniUPnP author.
https://miniupnp.tuxfamily.org/ |
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sidarape
Joined: 30 Dec 2010
Posts: 5
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| Posted: Fri Dec 31, 2010 5:41 pm Post subject: |
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| miniupnp wrote: | | you shoud define the STATICLIB macro in your code if you are linking against the static library (.a) and not the .lib for .dll linking. |
What is the content of this macro is supposed to have? |
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sidarape
Joined: 30 Dec 2010
Posts: 5
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| Posted: Fri Dec 31, 2010 8:56 pm Post subject: |
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Finally, I was able to compile my program by generating a new .a file with this command:
| Code: | | dlltool --input-def natpmp.dll.def --dllname natpmp.dll --output-lib libnatpmp.a -k |
Next, I put the result .a in the lib directory of MinGW. I was important that the name begin by "lib". And there is the command line to compile my program:
| Code: | | gcc main.c -o nat -lws2_32 -lnatpmp |
Do you know why I had to do this? If no, I think that it would important to mention the proceed of compilation in the documentation.
Thank you for your answer. |
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miniupnp
Site Admin
Joined: 14 Apr 2007
Posts: 1594
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| Posted: Sat Jan 01, 2011 6:29 pm Post subject: |
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well, the Makefile for mingw32 does produce both libminiupnpc.a (static library) and miniupnpc.lib/miniupnpc.dll (dynamic linking library).
You can then choose to link your program against one of theses.
You can take example on how upnpc-static.exe and upnpc-shared.exe are build.
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https://miniupnp.tuxfamily.org/ |
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sidarape
Joined: 30 Dec 2010
Posts: 5
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| Posted: Sat Jan 01, 2011 7:57 pm Post subject: |
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Ok thanks, I didn't think that gcc could take .lib library. There is the final command that I use for people who would visit this forum:
| Code: | | g++ main.cpp natpmp.lib -o nat -lws2_32 |
So, I have another little problem and I think that it is not necessary to open another topic.
I tried this program from the original example from this site but I managed the errors:
| Code: | #include <stdio.h>
#include <stdlib.h>
#include <natpmp.h>
bool redirect(uint16_t privateport, uint16_t publicport);
int main()
{
unsigned short port = 80;
if(!redirect(port, port))
{
printf("Redirection refuse\r\n");
}
return 0;
}
bool redirect(uint16_t privateport, uint16_t publicport)
{
bool valide = false;
int erreur = 0;
int r;
natpmp_t natpmp;
natpmpresp_t response;
if((erreur = initnatpmp(&natpmp)) == 0)
{
if((erreur = sendnewportmappingrequest(&natpmp, NATPMP_PROTOCOL_TCP, privateport, publicport, 3600)) == 12)
{
do {
fd_set fds;
struct timeval timeout;
FD_ZERO(&fds);
FD_SET(natpmp.s, &fds);
getnatpmprequesttimeout(&natpmp, &timeout);
select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
r = readnatpmpresponseorretry(&natpmp, &response);
} while(r==NATPMP_TRYAGAIN);
if((erreur = r) == 0)
{
printf("mapped public port %hu to localport %hu liftime %u\n",
response.pnu.newportmapping.mappedpublicport,
response.pnu.newportmapping.privateport,
response.pnu.newportmapping.lifetime);
if((erreur = closenatpmp(&natpmp)) == 0)
{
valide = true;
}
}
}
}
else
printf("Erreur: %i\n%i\n", erreur, WSAGetLastError());
return valide;
} |
The exit of this program is:
| Quote: | Erreur: -2
10093
Redirection refuse
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I see in the code where the error come from, there are the lines:
| Code: | p->s = socket(PF_INET, SOCK_DGRAM, 0);
if(p->s < 0)
return NATPMP_ERR_SOCKETERROR; |
I really don't see why the creation of the socket crash. I tried to run my code as an administrator and without firewall. Do you know why this doesn't work and how to get the socket error type? |
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miniupnp
Site Admin
Joined: 14 Apr 2007
Posts: 1594
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| Posted: Sat Jan 01, 2011 8:37 pm Post subject: |
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look at the sample program natpmpc.c or upnpc.c and add the code
| Code: |
#ifdef WIN32
WSADATA wsaData;
int nResult = WSAStartup(MAKEWORD(2,2), &wsaData);
if(nResult != NO_ERROR)
{
fprintf(stderr, "WSAStartup() failed.\n");
return -1;
}
#endif
|
at the begining of your main() function.
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Main miniUPnP author.
https://miniupnp.tuxfamily.org/ |
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sidarape
Joined: 30 Dec 2010
Posts: 5
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| Posted: Sat Jan 01, 2011 11:44 pm Post subject: |
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Thanks to you, I think that's all of my questions for the moment. If I have more question, I will be back here.
Also, I would like to say congratulation for your program and thanks for the participation of the FS community. |
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